{"copyright_id":"0xe6c0597eb2c5277fbfcf0efd0ffdab011b3b7ab69ebb05a6d1b806dee902e36b","name":"Alfredo Gobbi y su Orquesta Típica","registered_at":"2026-06-17T06:42:36Z","symbol":"NIM1313142","token_address":"0xd6c8d13a31208c0ee03a719d56dca8aa61f3e3b8","type":"artist","uuid":"76029c8d-ff07-411a-a5ec-7ddcccb6f6b1"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c0597eb2c5277fbfcf0efd0ffdab011b3b7ab69ebb05a6d1b806dee902e36b. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/76029c8d-ff07-411a-a5ec-7ddcccb6f6b1.json and https://artists.proofprofile.net/proofs/artist/76029c8d-ff07-411a-a5ec-7ddcccb6f6b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73b22dbb5dc621e9483e3c7abf8d148ec04be3d87ad7ba94f8a05a8987150d8. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039902199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e1a51b07f244f27efe0f29861d9d00ddb95750b5c82e529d926bb5c0cbbc5d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039821118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b14c3303d8135600d88786a2a56e706fee3bcd74290d51014e06b5f7232c4e. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039902225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb094d09507bee6c79b226d53ad47b97256f42474410ba94f20a72987e58e48c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039500189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7067427d8863a84b9744fabdf33a0d3699074e8fedb046d5a69f14e7cac25f39. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF036200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa37b5915bd4699f9f2eecc05fc78517c76ec86f15d9993862f45318f1e371f. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF036900083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26151b0e07c544cbf9d5b8e27455ea5c211dfccead99564e3891e6af8c23f051. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034700023.
Juan De Dios Filiberto y su Gran Orquesta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42282bdf572463cd304e432efd4d04a6d341a8f9413b265ec2c31b6db5a18812. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035900050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae7e990dd1c2d2a2ce5e75b9a6c0773b54e31227d89bd637bf9592925a784ee. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO52468792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07efc009bb7e0eb7874eb29913694b0487544781d9389571559e1bfa48a207ac. Chain 2 (Bitcoin): anchored in block 959147 (2026-07-22T15:43:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA821000849.
Ricardo Tanturi y su Orquesta Típica Los Indios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97032c50bd92389d537bb1057eca8095f6f4bf6700c31ee49b7967f14f327794. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USV291321898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e481bab0978e5973d646ef4abd766866078295630f4e9400e1b5c387c2a2770. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039300109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec7d5ab0f0c8f4b401efadc3f518241ebc7c52e9af2c6527446183cb54c3b0c. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF036300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2717cb15e9c9e6204655f1e3eebe766ca45241bf91f435164de310e86e7b0640. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039400564.
Alfredo Gobbi (El Violín Romántico Del Tango) y su Orquesta Típica
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9513d94349fcf89fcac90e5d25d04cf67cd0e5f96750a7e64487b24cefa186b8. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034700046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f2922a5a3bb8133b143c3b92385de3b0c87392a6b22dbc9934e049bf018455. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034700048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08af9263a2b99a0858f8d9637a4624b76a2a6a5149a828ed2c688d444892ada0. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034800026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a576a03ce7faa3bfa43a21922031174f23bfda61688abe42876711a68751d7a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039702453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17747ebe4fb5d1e5994cdb7d5f244de1b43519018d25b46fd6d280215496a1b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035200058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1fe7f176ee2b0aa5b10097cd22d540e5639a6cfcd5f2183c5f19deba6a5280. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF034900079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e466f394e8afbe2d549a31703638b69f3de5ff058d285443c56f031f045b077. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039703035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbfab1f4d45e0577a432fca9af6deeb0fd9cc5f447096742b077b2454ff102da. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF039702455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29e72ed61aebe33729c494609298ff0a2f9bc4ac7615b4df5498524c8ae20b0. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca48eb4d5db2b9e5ef5bb7c6ffccf2e2dcbe0bbada7bbc7d1af72e4262bcb9e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF035500104.
Great Argentine Tangos (1940 - 1960), Vol. 2
Archivo Columbia : José Sala - Alfredo Gobbi
Archivo RCA: La Década del '50 - Alfredo Gobbi
Tango "Patrimonio Cultural Inmaterial De La Humanidad"
Una Antología del Tango - "Las Orquestas"